Fuel Pump 1965
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=4302
Printed Date: November-27-2024 at 11:38am
Topic: Fuel Pump 1965
Posted By: AMSKIER65
Subject: Fuel Pump 1965
Date Posted: July-29-2006 at 8:02pm
I'm trying to replace a Carter fuel pump on 1965 Interceptor 6 cyl. 170 c.i. 100hp American Skier. I'm thinking NAPA #
M4335 is closest I've seen. Any thoughts?
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Replies:
Posted By: 65 'cuda
Date Posted: July-30-2006 at 3:51pm
The diaphram on my 1965 m318 also failed (first day of vacation and the first day back in the water after the overhaul). I could not find the correct match for the carter pump. I have run an electric pump (designed for carburated engines).
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Gary
http://www.correctcraftfan.com/diaries/details.asp?ID=941" rel="nofollow - 1965 Barracuda SS
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Posted By: AMSKIER65
Date Posted: July-30-2006 at 7:28pm
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That was an idea I had but I wasn't sure how to spec it out. What did you use? And where did you get it? Thanks
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Posted By: 65 'cuda
Date Posted: July-31-2006 at 9:00pm
It is a micro electric fuel pump for carburated engines. I bought it at advance auto parts, any parts store will have something similar. I left the original pump in place. I mounted the new pump to the stringer and wired it to a terminal on the relay bracket that was hot only with the ignition on.
I don't think this will be a long term fix. I will either get a marine specific electric fuel pump and plumb it into the fuel line (I doubt the unit I bought was designed for use in an enclosed bilge.) If I get a new electric unit I will have a block off plate made to go where the mechanical pump was. Or I will find the correct Carter mechanical Pump. Hope this helps.
Gary
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Gary
http://www.correctcraftfan.com/diaries/details.asp?ID=941" rel="nofollow - 1965 Barracuda SS
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Posted By: stang72
Date Posted: July-31-2006 at 10:41pm
On my 62 classic the PO changed the pump to an electric pump....I assume because of hard to find parts....it works fine!
Gary...you can purchase a plate and gasket to block the pump opening...and I think I have seen them on the Skidim site.
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stang
Face plants are not that funny when it's you face!
http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air
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Posted By: 62 wood
Date Posted: August-01-2006 at 12:28am
David,
Ive been running an electric fuel pump on my 64 American Skier with the 6 beater 170 for over a year with no problems. I mounted it just above the stringer, right at the gas tank, behind the rear seat.
i dont remember what brand, I think I can find out if youd like?
Post some pics of the ol girl!
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http://www.correctcraftfan.com/diaries/details.asp?ID=1117&sort=&pagenum=6" rel="nofollow - 64 American Skier
62 Classic..
73 Ski Nautique
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Posted By: boat dr
Date Posted: August-01-2006 at 10:27am
modification of any fuel system is not cool,but possibly deadly. that carter pump is still available part #M73039,change out the vent nipple,going to top of carb,and you will back in bussiness.BIA has standards for fuel systems as well as the coast guard,deviate from these and you are asking for a problem, explosion/fire/no more boat, jmho..... boat dr
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boat dr
/diaries/details.asp?ID=4631 - 1949 Dart
/diaries/details.asp?ID=1533 - 1964 American Skier
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Posted By: stang72
Date Posted: August-01-2006 at 12:58pm
Changing to an electric pump is not a safety risk(well it could be if not done right)...make sure you use the marine rated lines and fittings. You can purchase an electric fuel pump for marine application that is a replacement for mech. types and for carburated engines!
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stang
Face plants are not that funny when it's you face!
http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air
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Posted By: AMSKIER65
Date Posted: August-02-2006 at 8:30pm
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These are all a big help. I'll keep researching with what you guys have given me. I'll keep you posted with with what I find.
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Posted By: David F
Date Posted: August-03-2006 at 1:35pm
Electric fuel pumps (marine or otherwise) should have provisions to stop the pump if the engine dies. Most people use an oil pressure switch. The engine will start an run with no initial oil pressure because of the fuel in the bowl of the carburetor until oil pressure is built and the pump turns on.
Such a safety device helps prevent the fuel pump from filling the bilge in the event of fuel line failure...once the engine quits, the pump quits.
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Posted By: 65 'cuda
Date Posted: August-03-2006 at 7:25pm
Thank you David, this bit if info is very helpful.
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Gary
http://www.correctcraftfan.com/diaries/details.asp?ID=941" rel="nofollow - 1965 Barracuda SS
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Posted By: boat dr
Date Posted: August-04-2006 at 4:14pm
thi is why there are bia (boating industry of america) regulations as to fuel and elect. parts,as a repair shop i cannot remove are alter any component of elect. or fuel system. i can ,by law,only replace w/bia approved parts. if i do i become,in the eyes of the courts, a boat manufacture. in the event of fire or other problems this =lawsuit. the reason for the little tgs on all marine parts SAE 9711=no lawsuit. yamaha & mercury marine are big advocates of leave the engineering to them and the repairs to us,just use the rite parts............boat dr
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boat dr
/diaries/details.asp?ID=4631 - 1949 Dart
/diaries/details.asp?ID=1533 - 1964 American Skier
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Posted By: AMSKIER65
Date Posted: August-04-2006 at 8:10pm
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I may not have a choice but to go electric. If a mechanical pump M73039 exists somewhere I haven't seen a reference to it in any of my on line research. Point me in a direction boat dr
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Posted By: jbear
Date Posted: August-04-2006 at 10:14pm
boat dr; Where are ya located?
john
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"Loud pipes save lives"
AdamT sez "I'm Canadian and a beaver lover myself"...
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Posted By: AMSKIER65
Date Posted: August-05-2006 at 2:47pm
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OK, I found out my local NAPA supply can get me the M73039 pump in few days. Non returnable so I hope its right. I'll let you know.
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Posted By: Tim D
Date Posted: August-05-2006 at 11:21pm
Is that pump a true marine? The original on my '66 was just a normal auto pump with a glass sediment bowl on the bottom and no extra line to the carb for when the diaphram blew.
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Tim D
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Posted By: SS-201
Date Posted: August-06-2006 at 8:10am
You can buy the Marine Carter electric pump from Jegs, it works fine and is safe. Use Marine fuel line, the oil pressure switch is a good idea to have.
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SS 201
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Posted By: 65 'cuda
Date Posted: August-14-2006 at 7:37pm
After this weekend,I will be going back to a mechanical pump. The electric pump I installed failed so I returned it for another, Had it swapped out at the campground in an hour. Ran the boat that evening, no problems. The next morning the boat would not start, acted like no fuel again. I could hear the little pump going clicky clicky. Pulled the line off the carb to see if any fuel was getting through. No. I decide the go get a better electric pump. I get a different brand at a different supplier. The pump is about three times the size of the other electric pump. RAted at 4-7 psi. Wire it up and check to see if it works, Oh yeah! works too good. I can hear fuel flowing through the carb and leaking out in places it shouldn't. (outside the carb body through the primary and secondary throttle shafts)
Needless to say I gave up. I spoke to some guys at Hurriakin marine and Marysville marine (both old chrysler experts) today to see if I could source a fuel pump for the M318 Polyhead. It turns out that the pumps were the same for the M318's and the later LM318's. So I have a pump on the way. I will add a hose barb connection to the flame arrestor to have a place to run the overflow tube.
My question is this? Is it likely that I damaged anything in the carb with too much fuel pressure? The summer is coming to an end and I have a trip to lake cumberland planned. I don't want to mess around with problems. I can get a remanufactured replacement Carted AFB from the Carburetor Specialists for about $ 320.00 plus the core.
It would get me some peace of mind. Any ideas?
Thanks,
Gary
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Gary
http://www.correctcraftfan.com/diaries/details.asp?ID=941" rel="nofollow - 1965 Barracuda SS
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Posted By: Mercrewser
Date Posted: August-16-2006 at 10:24pm
I rebuilt my Carter pump. It is NLA, but the rebuild kit was cheap and easy. Not sure what pump I have, and it is on an old Chris Craft engien.
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1969 Chris Craft Commander SS #39
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Posted By: AMSKIER65
Date Posted: August-21-2006 at 8:42pm
It turns out NAPA #M73039 doesn't look like the original. The arm is not the shape at all. Luckily I saw a pic before I bought it. This supplier did some research on his own with NAPA and found out my pump has been discontinued. His next suggestion is to help me find diaphrams or rebuild parts from another pump. I will get a pic or two posted one of these days, she looks good sitting on the trailer!
AMSKIER65
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Posted By: AMSKIER65
Date Posted: August-21-2006 at 8:48pm
What is Jegs and do they take originals and rebuild them for you?
Thanks
AMSKIER65
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Posted By: AMSKIER65
Date Posted: August-21-2006 at 8:52pm
TimD-This one doesn't have the extra line to carb. It looks original, whats left of the paint is the same as the rest of the engine parts.
AMSKIER65
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